ambient vibration

Dynamic Characteristics for Cables-stayed Bridge Based on Ambient Vibration Testing

基于环境振动测试的桥梁动力特性

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Ambient vibration method is presented to carry out the bridge tower modal property test and, its important modal parameters are also identified.

本文采用环境激励振动测试的方法对润扬桥塔的振动特性进行了测试，识别了其重要的模态参数。

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Taking the reaction at bottom of bridge pier generated by the spatial coupled vibration of the vehicle-track-bridge system as the excitation of the three-dimensional model of soil-building, the propagation pattern of the ambient vibration in soil and its vibration effect on the surrounding building are numerically analyzed.

将车辆-轨道-桥梁系统耦合振动产生的桥墩墩底反力作为土体-建筑物三维有限元模型的外部激励，通过数值分析得到环境振动在土体中的传播规律以及对周边建筑物的振动影响。

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The method is better to traditional ambient vibration method on many sides.

该方法较传统的方法有很多优势.

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Structural modal parameter identification under ambient vibration is becoming the main research area.

基于环境振动的结构模态参数识别方法正逐渐成为国内外研究的一大热点.

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Keywords: ambient vibration measurement, seismic capacity, RC buildings, regression.

关键词: 微振量测 、 耐震能力 、 钢筋混凝土建筑物 、?归分析.

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Vibration alert for use in areas of high ambient noise.

振动告警用于高噪音环境场合.

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